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The Ham test is a blood test used in the diagnosis of paroxysmal nocturnal hemoglobinuria (PNH). Patient red blood cells (RBCs) are placed in mild acid; a positive result (increased RBC fragility) indicates PNH or congenital dyserythropoietic anemia. [1] [2] This is now an obsolete test for diagnosing PNH due to its low sensitivity and ...
[1] Though it was one of the first anxiety rating scales to be published, the HAM-A remains widely used by clinicians. [2] It was originally published by Max Hamilton in 1959. For clinical purposes, and the purpose of this scale, only severe or improper anxiety is attended to.
HRSD online calculator Archived 2013-08-24 at the Wayback Machine "The Hamilton Rating Scale for Depression" (PDF). Archived from the original (PDF) on 2007-11-20 (49.0 KB) Clinically Useful Psychiatric Scales: HAM-D (Hamilton Depression Rating Scale). Accessed March 6, 2009.
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FCC amateur radio station license of Al Gross. In the United States, amateur radio licensing is governed by the Federal Communications Commission (FCC). Licenses to operate amateur stations for personal use are granted to individuals of any age once they demonstrate an understanding of both pertinent FCC regulations and knowledge of radio station operation and safety considerations.
The S stands for "Strength". Strength is an assessment of how powerful the received signal is at the receiving location. Although an accurate signal strength meter can determine a quantitative value for signal strength, in practice this portion of the RST code is a qualitative assessment, often made based on the S meter of the radio receiver at the location of signal reception.
Amateur radio licensing in the United States exemplifies the way in which some countries [which?] award different levels of amateur radio licenses based on technical knowledge: three sequential levels of licensing exams (Technician Class, General Class, and Amateur Extra Class) are currently offered, which allow operators who pass them access ...
A test setup suitable for testing receivers at microwave frequencies is shown in the figure. The two signal generators, F1 and F2, are combined using a directional coupler in reverse. That is, the two generators are connected to what would normally be the coupled and transmitted output ports respectively.
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